How to reconnect after timeout

Hello,
after I work on OWB client for some hours it disconnects from DB (even if I am still working on it) and I have to close the client and then re-open it in order to connect to Oracle.
Is it possible to reconnect to Oracle without to close-reopen the client?
Thank you in advance.
Raffy

Raffaella,
Can you give more info about your OWB configuration (OWB and DB version)? When does the disconnect happen - is it during periods of prolonged inactivity? In that case you might be interested in checking the sqlnet timeout parameters (in the configuration file sqlnet.ora). For example:
1. Use the parameter SQLNET.RECV_TIMEOUT to specify the time, in seconds, for a database server to wait for client data after connection establishment. A client must send some data within the time interval.
For environments in which clients shut down on occasion or abnormally, setting this parameter is recommended. If a client does not send any data in time specified, then the database server logs an ORA-12535: TNS:operation timed out and ORA-12609: TNS: Receive timeout occurred to the sqlnet.log file. Without this parameter, the database server may continue to wait for data from clients that may be down or are experiencing difficulties.
You can also set this parameter on the clientside to specify the time, in seconds, for a client to wait for response data from the database server after connection establishment. Without this parameter, the client may wait for a long period of time for a response from a database server saturated with requests.
2. Use the SQLNET.SEND_TIMEOUT parameter to specify the time, in seconds, for a database server to complete a send operation to clients after connection establishment.
For environments in which clients shut down on occasion or abnormally, setting this parameter is recommended. If the database server is unable to complete a send operation in the time specified, then it logs an ORA-12535: TNS:operation timed out and ORA-12608: TNS: Send timeout occurred to the sqlnet.log file. Without this parameter, the database server may continue to send responses to clients that are unable to receive data due to a downed computer or a busy state.
You can also set this parameter on the clientside to specify the time, in seconds, for a client to complete send operations to the database server after connection establishment. Without this parameter, the client may continue to send requests to a database server already saturated with requests.
3. SQLNET.INBOUND_CONNECT_TIMEOUT could also be investigated (this is for the log-in timeouts)
For more details, check the sqlnet services administration guide: http://download-west.oracle.com/docs/cd/B14117_01/network.101/b10775/profile.htm#NETAG091
Regards:
Igor

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